Commit Graph

62 Commits

Author SHA1 Message Date
asiva@google.com 8f208ad7ca Wire GrowableArray to use the internal VM object.
This also fixes issue (5526318 : Make access to GrowableArray objects through the dart api more efficient)
Review URL: https://chromiumcodereview.appspot.com//10012042

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@6341 260f80e4-7a28-3924-810f-c04153c831b5
2012-04-09 21:50:53 +00:00
asiva@google.com 2d3775a1b1 Resubmit change 6302 after fixing the compiler warning on older GCC compiler versions:
Change 6302 description:
- Wire the stack frame iterator to use stack maps for traversing objects if
there are stack maps in the code object. If there are no stack maps it still
does the old style stack frame traversal between fp and sp looking for tagged
pointers.
- Added a mechanism to be able to iterate over the code space and look for a
particular object.
Review URL: https://chromiumcodereview.appspot.com//10030001

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@6331 260f80e4-7a28-3924-810f-c04153c831b5
2012-04-09 18:20:23 +00:00
asiva@google.com c79da818cc Revert change 6302 until the compiler warning is addressed.
Review URL: https://chromiumcodereview.appspot.com//10025003

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@6304 260f80e4-7a28-3924-810f-c04153c831b5
2012-04-07 02:04:28 +00:00
asiva@google.com c27cec5b6e - Wire the stack frame iterator to use stack maps for traversing objects if there are stack maps in the code object. If there are no stack maps it still does the old style stack frame traversal between fp and sp looking for tagged pointers.
- Added a mechanism to be able to iterate over the code space and look for a particular object.

- Remove registration of code objects into the code index table.
Review URL: https://chromiumcodereview.appspot.com//9791048

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@6302 260f80e4-7a28-3924-810f-c04153c831b5
2012-04-07 01:44:48 +00:00
turnidge@google.com e610ab662b Revert my last change due to problems on other platforms.
Review URL: https://chromiumcodereview.appspot.com//9968088

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@6129 260f80e4-7a28-3924-810f-c04153c831b5
2012-04-03 17:51:20 +00:00
turnidge@google.com 11d29be5e1 Detect recursion during compilation of const constructors.
We now give a message like this:

    Illegal recursion in const constructor 'A.'.
Review URL: https://chromiumcodereview.appspot.com//9965081

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@6128 260f80e4-7a28-3924-810f-c04153c831b5
2012-04-03 17:32:39 +00:00
regis@google.com 5282e44fb2 Use null type argument vector instead of vector of Dynamic for a generic raw
type when possible.
Fix type finalization of type parameters (always finalize in the context of the
class being parameterized and not in the enclosing class where the type
parameter is used).
Fix wrong generic optimization and added a test (a generic type instantiated
from a raw instantiator is not always raw).
Added printing of type argument vectors.
Review URL: https://chromiumcodereview.appspot.com//9939003

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@6068 260f80e4-7a28-3924-810f-c04153c831b5
2012-03-30 22:16:52 +00:00
asiva@google.com 007764149f Update comment describing the length field in class Bigint.
Review URL: https://chromiumcodereview.appspot.com//9839087

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@5803 260f80e4-7a28-3924-810f-c04153c831b5
2012-03-24 02:56:26 +00:00
asiva@google.com e360e4d1c9 Second set of changes for implementation of stack map support.
- Added functionality to be able to build stack maps in the compiler and register them into the Code object during Code finalization.
- Merged code_generator_ia32_test.cc and code_generator_x64_test.cc into code_generator_test.cc as the two files were identical.
Review URL: https://chromiumcodereview.appspot.com//9721006

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@5764 260f80e4-7a28-3924-810f-c04153c831b5
2012-03-23 01:27:35 +00:00
hausner@google.com feafdf0e06 Properly recognize closures when setting breakpoints
Local functions and function literals are unknown to the VM
until the enclosing function is compiled. This change introduces
a list of known closures per class, and a function to look up
the innermost closure at a given token index.

The debugger now checks whether there are newly discovered
closures when a function containing a pending breakpoint is
compiled. If necessary, the breakpoint is set to the inner
function.
Review URL: https://chromiumcodereview.appspot.com//9716004

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@5599 260f80e4-7a28-3924-810f-c04153c831b5
2012-03-16 22:28:57 +00:00
asiva@google.com f120af8463 First step towards implementing stack map descriptions for the optimizing compiler.
Add a RawBitmap object and a bitmap builder.
Review URL: https://chromiumcodereview.appspot.com//9701010

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@5502 260f80e4-7a28-3924-810f-c04153c831b5
2012-03-15 00:18:05 +00:00
iposva@google.com a6dd90f000 - Make RawICData a subclass of RawObject and not RawInstance.
Review URL: https://chromiumcodereview.appspot.com//9691024

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@5379 260f80e4-7a28-3924-810f-c04153c831b5
2012-03-13 01:26:39 +00:00
asiva@google.com ec89c1a13d Fix from() to point to the correct value in RawGrowableObjectArray.
Review URL: https://chromiumcodereview.appspot.com//9652015

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@5203 260f80e4-7a28-3924-810f-c04153c831b5
2012-03-08 23:52:26 +00:00
asiva@google.com e4d024664e Add a first class GrowableObjectArray type in the VM and use it internally in the VM at all spots were we use GrowableArray first and then copy the contents into an Array object.
Next step is to use this type in growable_array.dart
Review URL: https://chromiumcodereview.appspot.com//9594028

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@5109 260f80e4-7a28-3924-810f-c04153c831b5
2012-03-07 19:14:02 +00:00
asiva@google.com 33d2e2fe26 Changes to shrink the token stream representation from two words to one word.
On standalone dartium which has about 50000 tokens in the libraries (core, coreimpl, builtin, io etc.) this reduces the heap size by about 180kb. The size of the standalone snapshot buffer reduces by about 72kb.

Also moved the keyword symbol table to the object store so that it does not have to repopulated on every script compilation. Should benefit regular user script load times.
Review URL: https://chromiumcodereview.appspot.com//9462003

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@4734 260f80e4-7a28-3924-810f-c04153c831b5
2012-02-29 02:46:29 +00:00
regis@google.com 47724a8491 Add support for malformed types and postpone some related errors from compile
time to execution time.

Still to do (once spec is clarified):
- properly handle generic type bounds errors
- properly handle 'instance of' type checks involving malformed types
- fix bad tests
Review URL: https://chromiumcodereview.appspot.com//9515011

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@4732 260f80e4-7a28-3924-810f-c04153c831b5
2012-02-29 02:14:18 +00:00
asiva@google.com 738f458956 Changes to get rid of dependency on openssl in the dart VM.
(This will enable dartium to be built on the windows platform).
Review URL: https://chromiumcodereview.appspot.com//9481019

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@4717 260f80e4-7a28-3924-810f-c04153c831b5
2012-02-28 18:36:39 +00:00
srdjan@google.com a343a49338 Do not count invocations but usage of a function, i.e., increment a function's counter at IC calls and at return operations in unoptimized code. (TODO: increment count at static calls as well). There is no checking at method entry any more. The function counter reporting is not measuring the invocation count but much more how much time we spend in a method. Removed counter at backward branches.
Renamed flags to:
--optimization_counter_threshold (default 2000)
--report_usage_count
Review URL: https://chromiumcodereview.appspot.com//9460015

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@4583 260f80e4-7a28-3924-810f-c04153c831b5
2012-02-25 00:33:25 +00:00
srdjan@google.com a54f33bf92 ICData is now a wrapper object that refers to the calling function, target name, ic data array, etc. The old ICData C++ class that wrapped around an Array is removed. The advantage is that the ICData object remains the same, only its ic_data array object is being modified as classes are added..
TODO: store ICData-s into function so that the type feedback can be easily extracted (currently must traverse the unoptimized code).
Review URL: https://chromiumcodereview.appspot.com//9395016

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@4417 260f80e4-7a28-3924-810f-c04153c831b5
2012-02-22 00:40:03 +00:00
asiva@google.com 3983c61041 Implement capability to use the same library prefix for multiple library imports (currently this is flagged as an error).
e.g:

#import("mylib101.dart", prefix:"mylib");
#import("mylib102.dart", prefix:"mylib");
#import("mylib103.dart", prefix:"mylib");
Review URL: https://chromiumcodereview.appspot.com//9363048

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@4289 260f80e4-7a28-3924-810f-c04153c831b5
2012-02-15 20:53:28 +00:00
asiva@google.com d50bbba277 Implement support for specifying string interopolation style variable substitution in the import and source statements.
e.g:
sivamach[runtime]>more /workspace/asiva/expr/test1.dart
#library('test1.dart');
#import('${GOOGLE}$SRC/test2.dart');
#import('$DART/test3.dart');
test1() {
  print("test1");
}
main() {
  test1();
  test2();
  test3();
}
sivamach[runtime]>more /workspace/asiva/expr/src/test2.dart
#library('test2.dart');
#source('$GOOGLE$SRC/test2a.dart');
test2() {
  print("test2");
  test2a();
}
sivamach[runtime]>more /workspace/asiva/expr/src/test2a.dart
test2a() {
  print("test2a");
}
sivamach[runtime]>more /workspace/asiva/expr/src/test3.dart
#library('test3.dart');
#source('test3a.dart');
test3() {
  print("test3");
  test3a();
}
sivamach[runtime]>more /workspace/asiva/expr/src/test3a.dart
test3a() {
  print("test3a");
}

sivamach[runtime]>out/Debug_ia32/dart --import_map=GOOGLE,/workspace/asiva/expr --import_map=SRC,src --import_map=DART,/workspace/asiva/expr/src /workspace/asiva/expr/test1.dart
test1
test2
test2a
test3
test3a
Review URL: https://chromiumcodereview.appspot.com//9359009

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@4199 260f80e4-7a28-3924-810f-c04153c831b5
2012-02-13 22:50:19 +00:00
srdjan@google.com 99edfad378 Print top level functions as well when reproting invocation count.
Review URL: https://chromiumcodereview.appspot.com//9390001

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@4187 260f80e4-7a28-3924-810f-c04153c831b5
2012-02-13 14:23:10 +00:00
cshapiro@google.com e8f396df7e Add external byte array API and finalize external strings and byte arrays.
This change adds peer and callback arguments to the external byte array
constructor and moves the peer, callback, and data storage into a VM
peer object.  At construction time, a weak persistent handle and VM
callback is associated with the VM peer.  The VM callback will delete
the VM peer and invokes the user callback to reclaim the user peer.

This change also activates the callback support for the various classes of
external strings.

Review URL: https://chromiumcodereview.appspot.com//9368049

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@4164 260f80e4-7a28-3924-810f-c04153c831b5
2012-02-11 04:34:44 +00:00
regis@google.com 851682f104 Represent declared type parameters of a class as an array of TypeParameter
rather than an array of String and simplify code accordingly.
Rename the field holding type parameter bounds of a class.

Note: I retract my earlier suggestion to Srdjan to represent interfaces of a
class (as well as its canonical types) as a TypeArguments. This would require
more code to check for an empty array and for growing the array. Besides, these
are really arrays and have nothing to do with type arguments. I removed the
corresponding TODO(srdjan).
Review URL: https://chromiumcodereview.appspot.com//9368032

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@4096 260f80e4-7a28-3924-810f-c04153c831b5
2012-02-09 21:28:53 +00:00
regis@google.com 2edb4ae9c7 Add token index position to classes and types for more accurate error reporting.
Review URL: https://chromiumcodereview.appspot.com//9325047

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@3965 260f80e4-7a28-3924-810f-c04153c831b5
2012-02-06 19:52:02 +00:00
regis@google.com 980cbf9c74 Store resolved library prefix in unresolved class object in order not to repeat
unnecessary library prefix resolution.
Remove redundant Type::NewParameterizedType() helper.
Simplify parsing of qualified identifiers.
Cleanup parsing of factory methods.
Fix resolution of imported types (add tests).
Review URL: https://chromiumcodereview.appspot.com//9233039

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@3703 260f80e4-7a28-3924-810f-c04153c831b5
2012-01-31 00:07:07 +00:00
cshapiro@google.com 569ef3c044 Add ByteArray interface and provide internal and external implementations.
The new ByteArray interface supersedes the ByteBuffer type which allowed
only external data storage.  This type has been removed and replaced by
the more flexible ByteArray with a default implementation that stores its
elements on the managed heap.

Review URL: https://chromiumcodereview.appspot.com//9195031

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@3613 260f80e4-7a28-3924-810f-c04153c831b5
2012-01-26 02:42:08 +00:00
hausner@google.com 02d59f08ba Add functions to list library and script urls in an isolate.
Review URL: https://chromiumcodereview.appspot.com//9117015

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@3571 260f80e4-7a28-3924-810f-c04153c831b5
2012-01-24 21:33:04 +00:00
hausner@google.com 3ebdf081ca Set breakpoint at url, line number
Add debugger functionality to set breakpoint at given url and line number.
Review URL: https://chromiumcodereview.appspot.com//9240014

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@3420 260f80e4-7a28-3924-810f-c04153c831b5
2012-01-18 23:15:56 +00:00
asiva@google.com f17a00e9ac Use special allocation functions for object creation while deserializing from a full snapshot in order to avoid the following:
- unnecessary initialization of objects with null
- avoid handle creation
Review URL: https://chromiumcodereview.appspot.com//9139067

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@3380 260f80e4-7a28-3924-810f-c04153c831b5
2012-01-18 00:20:17 +00:00
sgjesse@google.com bf67f24098 Move assert.h/assert.cc from runtime/vm to runtime/platform
The purpose of this change is twofold:

1. Source in the bin directory can now use the same assertions as
   source in the vm directory. The ASSERT macro used by the code
   in runtime/bin was just defined to use assert from the standard
   C library.
2. Moving other implementation parts from runtime/vm to
   runtime/platform (e.g. classes Monitor and Mutex) for sharing
   between runtime/bin and runtime/vm will be easier as these
   implementations rely on these assertion macros.

Created two gypi files for the platform directory. One for the
headers and one for the source. The source one is only included
when building the VM library and will be present in libdart.a
when the dart executable is linked.

All the code for asserts is still in the dart namespace.

Also re-arranged the order of includes to be alphabetically in
the files touched.

R=ager@google.com, iposva@google.com

BUG=
TEST=

Review URL: http://codereview.chromium.org//9189003

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@3335 260f80e4-7a28-3924-810f-c04153c831b5
2012-01-16 12:28:10 +00:00
turnidge@google.com 55e33151db Introduce the Error object class in the vm. It represents all of the
things that may go wrong while invoking the dart api.

Here are the four types of error:

- ApiError = the user misused one of the dart apis
- LanguageError = a language-level problem, e.g. compiler error
- UnhandledException = an uncaught exception made its way to the embedder
- UnwindError = a forced isolate interrupt

This cl is the first of a series. I plan to move the point of
creation for LanguageErrors into the Parser, etc. I also plan to move
the longjmp's out of dart_api_impl.cc. I also also plan to implement
UnwindErrors later.

(Copied from Issue 9085031 due to subversion problems)
Review URL: http://codereview.chromium.org//9166016

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@3168 260f80e4-7a28-3924-810f-c04153c831b5
2012-01-10 21:42:21 +00:00
hausner@google.com 4ee7c947aa Getting value of local variables on stack trace
Introduce concept of scope in local variable info, according
to mirror proposal.
Review URL: http://codereview.chromium.org//8983034

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@3017 260f80e4-7a28-3924-810f-c04153c831b5
2012-01-05 22:33:37 +00:00
iposva@google.com 346424b9b0 - Add a size field to the header.
- Make use of the field when available to avoid accessing the class.
Review URL: http://codereview.chromium.org//9072011

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@2936 260f80e4-7a28-3924-810f-c04153c831b5
2012-01-04 08:04:04 +00:00
iposva@google.com 7d5e5ec8a2 - Promote objects from new gen to old space if they survived a scavenge.
- Properly initialize the tags in intrinsified allocation.
- Check for valid tag bits.
Review URL: http://codereview.chromium.org//9027017

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@2796 260f80e4-7a28-3924-810f-c04153c831b5
2011-12-23 00:14:05 +00:00
hausner@google.com 503e2219b8 First part of inspecting local variables
This change introduces variable descriptors that describe the name, stack slot index, and source code stretch in which a variable is valid.

Activation frames in the stack trace now can enumerate the variables that are active in that frame.

Next step: fetch the value of variables from the stack.
Review URL: http://codereview.chromium.org//8992020

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@2671 260f80e4-7a28-3924-810f-c04153c831b5
2011-12-20 21:40:28 +00:00
iposva@google.com 5e1e9534db - Implement the old sweeper.
Review URL: http://codereview.chromium.org//8898034

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@2485 260f80e4-7a28-3924-810f-c04153c831b5
2011-12-15 22:37:35 +00:00
asiva@google.com 79857c7d20 Changes to set up the object tag bits
- sets up canonical
- sets up created from a snapshot
Added code to capture the tag bits during snapshot generation.
Review URL: http://codereview.chromium.org//8879063

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@2436 260f80e4-7a28-3924-810f-c04153c831b5
2011-12-14 18:09:18 +00:00
regis@google.com dd32effb72 Adjust index of type parameters at finalization time (fix issue 718).
Add test.
Review URL: http://codereview.chromium.org//8872037

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@2286 260f80e4-7a28-3924-810f-c04153c831b5
2011-12-08 23:00:55 +00:00
asiva@google.com 566ff2b3cf Add a tags field to RawObject so that we can tag objects with certain values,
e.g:
- object is canonical
- object was created from snapshot
etc.

Once we have class Ids implemented the current class_ and flags_ words can be
compressed into a single header word.
Review URL: http://codereview.chromium.org//8827016

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@2211 260f80e4-7a28-3924-810f-c04153c831b5
2011-12-08 00:43:06 +00:00
srdjan@google.com f98993384f Canonicalize TypeArguments.
Review URL: http://codereview.chromium.org//8773026

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@2133 260f80e4-7a28-3924-810f-c04153c831b5
2011-12-06 17:47:47 +00:00
asiva@google.com 7ddd0f0b89 First step towards generation of application script snapshots
- Introduce 3 kinds of snapshots (full, application script and messages)
- Added a dart API function to be used for generating an application snapshot
  and for loading the script from an application snapshot.

Next step is to introduce special handling in the WriteTo and ReadFrom
snapshot functions for 'kind == Snapshot::kScript'
Review URL: http://codereview.chromium.org//8772061

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@2105 260f80e4-7a28-3924-810f-c04153c831b5
2011-12-06 00:34:49 +00:00
iposva@google.com a9a5759f30 - Add free list to be used for sweep phase of mark-sweep collector.
Review URL: http://codereview.chromium.org//8787012

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@2053 260f80e4-7a28-3924-810f-c04153c831b5
2011-12-03 05:39:26 +00:00
srdjan@google.com d07087ce77 Ongoing renaming of type classes:
TypeArguments -> AbstractTypeArguments
TypeArray -> TypeArguments
Review URL: http://codereview.chromium.org//8776020

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@2002 260f80e4-7a28-3924-810f-c04153c831b5
2011-12-01 23:19:59 +00:00
srdjan@google.com 2ff4d8a207 Address Regis' comments, replace AbstractType with Type where possible.
Review URL: http://codereview.chromium.org//8772009

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@1992 260f80e4-7a28-3924-810f-c04153c831b5
2011-12-01 21:14:48 +00:00
srdjan@google.com 17552e9a3c Renaming type classes as discussed:
Type -> AbstractType
ParameterizedType -> Type

TODO: 

TypeArguments -> AbstractTypeArguments
TypeArray -> TypeArguments
Review URL: http://codereview.chromium.org//8761011

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@1987 260f80e4-7a28-3924-810f-c04153c831b5
2011-12-01 16:54:52 +00:00
iposva@google.com edd46d501f - Add support for marking bits in the object header.
Review URL: http://codereview.chromium.org//8728016

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@1882 260f80e4-7a28-3924-810f-c04153c831b5
2011-11-28 23:44:08 +00:00
cshapiro@google.com 1cff31c3d0 Implement external strings.
External strings refer to character data in memory located outside of
the managed heap.  This memory is considered to be owned by the
embedding application.  To help with the management of external
memory, the virtual machine allows the embedding application to
register for a "death notice" when an external string object is
garbage collected.  A death notice takes the form of a callback
invoked by the garbage collector with the address of the external
memory.  Death notices will be implemented in the garbage collector by
future commit.

Review URL: http://codereview.chromium.org//8383029

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@1679 260f80e4-7a28-3924-810f-c04153c831b5
2011-11-19 00:33:23 +00:00
asiva@google.com 5e6441a5cd Change loaded_ flag in RawLibrary to load_state_ in order to register different
states of the load process.
This state can then be used to ensure we report errors on duplicate loads.
Review URL: http://codereview.chromium.org//8520030

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@1643 260f80e4-7a28-3924-810f-c04153c831b5
2011-11-18 00:09:13 +00:00
cshapiro@google.com 1309ebd16e Add an external array type to support typed arrays.
Review URL: http://codereview.chromium.org//8429027

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@1601 260f80e4-7a28-3924-810f-c04153c831b5
2011-11-17 03:18:52 +00:00